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Introduction to Linux - A Hands on Guide

This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.

Now I can log in KDE and 3D works no problem, but an odd thing happens if I try to switch to from KDE to VT1,2,etc using crtl+alt+F1,F2,etc the console is unreadable, lines superimposed and duplicated.

Checked this forum and others for a similar problem but I couldn't find any.

Now I can log in KDE and 3D works no problem, but an odd thing happens if I try to switch to from KDE to VT1,2,etc using crtl+alt+F1,F2,etc the console is unreadable, lines superimposed and duplicated.

I don't use proprietary drivers, but have a possible idea. Is your console set to vga=normal in lilo.conf? This is currently recommended when using non-free drivers.

As I said, I don't use them myself, but if you aren't using vga=normal I'd say it's worth a shot.

i had the same problem, im guessing different version of the driver are made for different versions of the Kernel, i use to have the 12.4 driver on my laptop, with the kernel 2.6.37, but when i update to slackware 14 - current, the driver did not work, and even the lastest driver 13.4 did not work for me, just a black screen after startx, so i install the beta 13.6 and is the only one that have been working fine for the last month or so.

Had the same problem described here but in -current.
vga=normal doesn't help
nomodeset doesn't help
vesa driver for Xorg doesn't works either(AFAIR)
It seems it is not problem of initalizing video driver(mode), but problem of switching modes by X.

> # aticonfig --initial -f
I suggest you additionally specify screen resolution, because if not to restrict stupid driver applies resolution not supported by my monitor.